The be quiet! System Power 11 450W (BP009EU) is an ATX power supply for desktop PC builds. Its 450 W rated output and ATX 3.1 design provide power for the processor, graphics card and other system components.
A temperature-controlled 120 mm fan adjusts its speed to help reduce system noise. DC-to-DC voltage regulation and a single 12 V rail are part of the unit’s power design. The manufacturer lists 80 PLUS Bronze efficiency, up to 89.0%.
For graphics cards, the supply has two PCIe 6+2-pin connectors and supports PCIe 5.1 cards through its ATX 3.1 design. The casing measures 150 × 140 × 86 mm without cables, a useful fit reference when planning a desktop build.
